﻿#region Copyright and Licensing Notice
// Copyright (C) 2011 Steven Bosnick
// 
// This program is open source software; you can redistribute it 
// and/or modifiy it under the terms of the Eclipse Public License,
// version 1.0.
// 
// This program is distributed in the hope that it will be useful, 
// but WITHOUT ANY WARRANTY; without even the implied
// warranty of MERCHANTABILITY or FITNESS FOR A 
// PARTICULAR PURPOSE. See the Eclipse Public License for more
// details.
// 
// You should have received a copy of the Eclipse Public License 
// along with this program; if not, you can find a copy at
// "http://www.opensource.org/licenses/eclipse-1.0.php".
#endregion
using System;
using System.Threading.Tasks;
using BitwiseOre.SharedMemory.JetBrains;

namespace BitwiseOre.SharedMemory.Utils
{
    internal sealed class AsyncResultEnder<T> : IAsyncResultEnder<T>
    {
        private readonly ITaskEnder<Task<T>> _ender;

        public AsyncResultEnder(ITaskEnder<Task<T>> ender)
        {
            _ender = ender;
        }

        public T EndTask(IAsyncResult asyncResult, Func<AggregateException, Exception> createException)
        {
            var task = _ender.EndTask(asyncResult, createException);
            return task.Result;
        }
    }

    [UsedImplicitly]
    internal sealed class AsyncResultEnder : IAsyncResultEnder
    {
        private readonly ITaskEnder<Task> _ender;

        public AsyncResultEnder(ITaskEnder<Task> ender)
        {
            _ender = ender;
        }

        public void EndTask(IAsyncResult asyncResult, Func<AggregateException, Exception> createException)
        {
            _ender.EndTask(asyncResult, createException);
        }
    }
}